Car-lamp



(N0 Model.) 2 Sheets-Sheet 1..

I HBOESGH.

OAR LAMP. I No. 492,954. Patented Mar. 7, 1893.

2 Sheets-Sheet 2.-

RB-OESGH.

GAR LAMP (No Model.\

r NORRIS PETERS c0. woYaLmgc. wpsumomn. o c.

UNITED STATES PATENT OFFICE.

EMILE BOESCH, OF SAN FRANCISCO, CALIFORNIA.

C A R LA M P PEGIFiGATION forming part of Letters Patent No. 492,954,dated March 7,1893.

Application filed April 6, 1892. Serial No. 428,052. (No model.)

To all whom it may concern.-

Be it known that I, EMILE BOESCH, a citizen of the United States,residing in the city and county of San Francisco, State of California,have invented an Improvement in Car-Lamps; and I hereby declare thefollowing to be a full, clear, and exact description of the-same.

My invention relates to improvements in car lamps of that sort which arefixed in the side or end of the car, and have glazed surfaces for thepassage of the light upon two or more sides of the lamp.

My invention consists in certain details of construction which will bemore fully explained by reference to the accompanying drawings, in whichFigure l is a vertical cross section through my lamp. Fig. 2 is asimilar section taken at right angles to the sectional line of Fig. 1.Fig. 3 is a detail.

This invention is a street car end reflector lamp, such as is used tolight the car length- Wise, and is so constructed as to light also theplatform with the same burner. It feeds the heated air coming downthrough channels from apoint near the exhaust outlets as shown in aprevious application of mine, Serial No. 391,560, filed May 4, 1891.burner are introduced through the door, and act from above into achamber provided with special Ventilation to prevent the overheatin g ofthe oil. The body is provided with tight joints to prevent the admissionof air except from above. The wick can be raised from the outside, andthe chimney is securely connected to its extension and held on theburner thereby. The burneris provided with an improved chimney-holder.The exhaust tube is protected so that no wind can enter it. 7 Such lampsare secured to and into the woodwork of the end of a car. The hollowpart of said woodwork is used on one side by the sliding car door, whileinto the hollow part of the other side enters that part of this lampcasing which contains the circular reflector made of small sections, andit is secured therein by means of the flange B and screws as shown inFig. 2. The burner and glass chimney are within the car and inside theinner line of Woodwork, reflector and flange B. This part of the lampcasing A is provided with a cv- The fount and lindrical glass frontformed of sections; one of clear-glass bent to correspond with the formof a short cylinder is secured to the side toward the entrance of thecar, filling out the out the car through the windows. Another section ofglass is fitted into the hinged door frame. When the lamp is secured inthe middle of the end of a car, clear sections of glass are used allaround the front part projecting into the car.

A is the casing which is made, as shown in the present case, in the formof a short cylinder of sufflcient diameter to receive the oil fount andchimney, and it has a flange B which fits against the inner surface ofthe wood-work of the car. A hole of sufficient diameter is made throughthe side of the car to allow that part of the casing which is exteriorto this flange to pass through it, and a second flange C projects fromthe rim D which carries an outer glass. having an open center whichisbounded by a double flanged frame or rim C,and into the open center ofthis plain glass, and fitted to the said rim, is let a colored glass asshown in Fig. 2. The rim D fltsand telescopes over a correspondingcircular rim which projects from the exterior of the casing A. This lastrim has the outer edge turned inward to make an easy connection and afinish on the inside in holding the outer edge of the glass. This outerglass and rim are of considerably smaller diameter than the main casingA, and between these two the reflecting surface D is fixed. Thisconsists of any suitable reflecting plates, the inner edges of which aresupported by a flange turned up from the inner rim as shown. The outeredges of these reflectors are held by small lugs of metal which areattached to the main casing and turned down over the edges of thereflector so as to hold them securely in place. In order to cover theselugs and present a finished appearance of the outer periphery of thereflector I fit a supplemental This is a plain glass any rays of lightwhich would be lost or pass ring E into the body which is held in placeby small clamps at intervals around the periphery.

The oil fount F is fitted into a chamber or casing G open from belowwhich arises from the lower part of the casing A, and is suitic entlylarger than the oil fount to leave an air space entirely around thelatter. The top of the oil fount has a flange H fitting properly aroundthe upper opening of the casing G} when the fount is in place, and makesa tight oint to prevent any air entering the interior of the casing Afrom below.

The lower part of the casingA is cut away to present an opening frombelow into the casing or chamber G, and beneath this is a cup-shapeddisk I secured to the bottom of the casing A, and having openings at thesides through which air may enter freely to pass up around the oilreservoir and keep it cool. At the same time the flange at the top ofthe oil reservoir prevents any of this air from entering the interior ofthe casing A. lhe receptacle I at the bottom serves to re celve any oilwhich escapes from the oil fount by capillary attraction, or by othermeans. It also serves to hide the bottom of the fount, and to make afinish to the bottom of the casing A.

lhe outer face of the casing A is inclosed, as previously dcscribed bytheglass and bullseye which opens out upon the car platform, and theinner face is closed by a circular glass door which is hinged to oneside of the flange of easing A, and is held to the opposite side by asuitable catch.

The chimney holder of the burner has an inner vertical rim aof properheight and diameter, with resting flange at its base most convenient toreceive, hold and steady the glass chimney. This device cannot get outof order, nor accumulate bits of charred wick or matches, which do notpermit the chimney to rest properly on the burner and which take firewhen soaked with kerosene and heated. The small edge I) turned upwardfrom the flange is to deflect the horizontal puffs of air from enteringthe burner between it and the chimney. But as glass chimneys vary insize and. in thickness (say less than one-eighth of an inch) althoughintended to [it the same burner, I use prongs or springs c to pressevenlyon the inner surface of the glass. Said prongs are guided byholes, sockets or loops (Z in 01' on the rim a through which they passand are held near their upper end.

These will not only prevent the prongs from bending asidein orout andoften entirely out of shape, renderingit most difficult to getthechimney on or off, but said guides will always hold the springs inreadiness to receive the chimney and hold the same with the burnercentral within it.

The shaftJ of the burner by which the wick is raised and lowered extendsout through a slot made through the side of the supplemental casing A,so that the thumb-piecc by which it is turned is exterior to the casing,and when the door closes over the supplemental casing, it holds thisshaft in place and prevents any entrance of air through the slot Whenthe lamp is to be removed the door is opened, and the oil fount turned alittle to withdraw the shaft from the slot when the oil fount can belifted out, the shank itself serving as a handle for that purpose ifdesired.

\Vhen the lamp is burning the door should never be opened as it isdesirable in this peculiar construction of lamp not to allow any air toenter the lamp or escape therefrom except from the outside of the car.In order to accomplish this, a hole is made through the wood-work androof of the car, and through this the cylindrical extension K passes,and. upon the outside of it is fitted the telescopic extension L whichallows of proper adjustment of the two to suit the thickness of thewood-work through which it is to pass. This construction being fullyshown, described and claimed in my former application, Serial No. 3 1560 before referred to.

\Vithin the cylinder K is supported a second cylinder M by means ofstrips extending from it to the interior of the cylinder K to which theyare secured. \Vithin this inner cylinder M moves an extension tube 0 orcontinuation of the lamp chimney N, the lower end of which rests uponthe burner in the usual manner, and the upper end passes into theextension 0.

In order to introduce and remove the glass chimney from the burner, Iuse an interior extension chimney or tube 0, the upper end of which fitsinto M and the lower end extends downward some distance below it andreceives the upper end of the glass chimney. Across the lower end ofthis tube 0 is fixed a bar P which is always maintained parallel withthe face of the door so that when the upper end of the chimney isintroduced into this movable extension tube 0, it rests against this barP and turns about it as upon a pivot until the chimney is in a verticalposition when the lower end can be set upon the lamp. This movableextension tubeOis surrounded by a spiral spring which presses it downwith some little force so as to insure the chimney being held in placeupon the burner, and to prevent airentering around the bottom of thechimney, or the chimney from shaking loose by jar or movement of thecar. The bar P preferably extends through the sides of the extension 0,and is turned upward and bent upon itself so as to form an elongatedslotted guide P upon one or both sides and these guides inclose two ofthe lugs by which the tube M is held in place within the tube K. Thisalways insures the barP remaining par allel with the door so that theglass chimney will rest upon and turn about it as it is being insertedinto the lamp. The outer cylinder L has perforations made around itstop, as shown at Q, and from the flange R fixed above these holes a rimprojects downwardly over them as shown,and a barRis put across theopening of the flange to serve as a stop to the chimney M. Above thisopeningis a collar or deflectorUwith a flaring orbellshaped mouth, andabove the collar and flange is the cap T. Between the collar ordeflectorU and the cap T is an open space through which the products ofcombustion from the lamp chimney escape, thence out between flange andcap, while the air to support combustion passes downward into the casingof the lamp through the holes around the top of the tube K as previouslydescribed. The curved collar or deflector U surrounds the opening of theflat flange and is secured to the outer surface thereof, and being of amuch larger diameter on top than on the base, on account of itsbellshape, when covered by the special shaped cap it forms a large airchamber within, leaving an opening of a small diameter between deflectorand cap for the passage of exhaustair,and an opening of a large diameterbetween the flat outer edges of the flange and cap.

Horizontal pufls of wind can only enter the large opening and this onone side only at a time, and owing to the construction of a flat flangewith the bell-shaped deflector, said wind has no upward tendency, but isdeflected at once through and out the opposite side of the largeopening, and thus prevented from entering above the deflector, and itthus draws out the heated exhaust air.

Having thus described my invention, what Iclaim as new, and desire tosecure by Letters Patent, is

1. In a lamp or lantern, the combination of the exterior casing havingan open bottom to admit air and having a flange entering the mainchamber, and a lamp or lantern having an oil fount or reservoir locatedwithin said open bottom and forming an air tight seat upon said flange,said fount or reservoir being of smaller diameter than the interior ofthe casin g wherebya free circulation of air is provided around thefount or reservoir cut ofi from the interior of the main chamber.

2. In a lamp or lantern, the combination of a main casing havingachamberG at its lower portion extending into the main chamber and open at bothends, and a lamp or lantern having a reservoir or oil fount providedwith a flange adapted to close the upper end of the chamber G to preventthe admission of air into the main chamber, said reservoir or fountadapted to be wholly confined, within the chamber G and having adiameter less than the chamber, whereby the air entering said chamber Gcirculates around the fount or reservoir to keep the same cool, but isprevented I circulation of air about it, substantially as hereindescribed.

4. In a lamp or lantern, the oil reservoir having a supplemental disk orplate sup ported a short distance above the top, achamber within whichthe oil reservoir is wholly confined and supported with openings at thebase to supply cool air from outside to circulate around the reservoirand in the space above the top between it and the plate, said platehaving a flange fitting properly around the upper opening of the chambercontaining the reservoir, and making a tight joint and preventing theadmission of air into the main chamber, substantially as hereindescribed.

5. In a car reflector lamp, the outer glass, the flange to fit aroundthe hole on the outside'of the Wood-work having a rim to enter saidhole, in combination with a corresponding rim projecting from the lampcasing, both rims telescoping until fitting the various thicknesses ofwood or wall of car between the inner flange of the lamp casing and saidouter flange, and making a joint to prevent the admission of air intothe casing at that point, substantially as herein described.

6. In a lamp or lantern, the metal chimney extension having a cross wireto rest upon the upper edge of the glass chimney, said extension beingmovable upward to admit the glass chimney and downward so that it restsupon and forms a continuation of a chimney when the fount and burner arein place, substantially as herein described.

7. In a lamp or lantern, a vertically movable extension chimney having abar across the lower end against which the upper end of the chimneyrests, and upon which it turns when the glass chimney is beingintroduced and placed upon the burner, the guides maintaining the bar inthe same position at all times and preventing the extension from fallingdown, substantially as herein described.

8. In a lamp or lantern, a vertically movable extension to the glasschimney, an exterior cylindrical tube within which said extension isguided, a spiral spring surrounding it and normally pressing itdownwardly, and a transverse bar in the lower part on which the springpresses to force the extension down after the chimney is inserted orremoved, and which acts also to retain the chimney in place upon theburner, substantially as herein described;

9. In a lamp or lantern, the vertical movable extension tothe glasschimney, the cross bar P having its ends extended to form the slottedguides, and one of said guides being also extended through the side ofthe IIO lamp or lantern casing to form a handle by which the extensionis moved, substantially as herein described.

10. A lamp or lantern chimney top provided with a bar across the openingof the flange at the point regulating and stopping the upper end of theexhaust tube within the chimney top when placed over the concentrictubes of the lamp body, substantially as herein described.

11. In a lamp or lantern chimney top, the deflector consisting of thefiat flange, the outwardly curved collar around the opening on the uppersurface of said flange, in combination with the cap leaving an airpassage be- EMILE BOESOH.

Witnesses:

S. H. NoURsE, II. F. AscIIEcK.

